. sftt sigs
{\smallskip}
               Variance Estimation          
\HLI{47}
sigma_v    :       0.9312
sigma_u    :       0.6224
sigma_w    :       1.4797
sigma_v_sq :       0.8672
sigma_u_sq :       0.3873
sigma_w_sq :       2.1896
\HLI{47}
               Variance Analysis          
\HLI{47}
Total sigma_sqs     :  3.4442
(sigu2+sigw2)/Total :  0.7482
sigu2/(sigu2+sigw2) :  0.1503
sigw2/(sigu2+sigw2) :  0.8497
sig_w - sig_u       :  0.8574
\HLI{47}
{\smallskip}
. sftt eff
The following variables have been generated:
_u_hat
_w_hat
_wu_diff
_u_hat_exp
_w_hat_exp
_wu_diff_exp
_wu_net_effect
{\smallskip}
. sum _u_hat_exp _w_hat_exp _wu_diff_exp
{\smallskip}
    Variable {\VBAR}        Obs        Mean    Std. dev.       Min        Max
\HLI{13}{\PLUS}\HLI{57}
  _u_hat_exp {\VBAR}      1,600    .3818473    .1049245   .3046399   .9900407
  _w_hat_exp {\VBAR}      1,600    .6003683     .198864   .3046399   .9999939
_wu_diff_exp {\VBAR}      1,600     .218521    .2852138  -.6854007    .695354
{\smallskip}
. sum _wu_diff_exp, detail
{\smallskip}
                        _wu_diff_exp
\HLI{61}
      Percentiles      Smallest
 1\%    -.4977102      -.6854007
 5\%    -.2708443      -.6775006
10\%    -.1505466       -.644028       Obs               1,600
25\%     .0229924      -.6344826       Sum of wgt.       1,600
{\smallskip}
50\%     .2233657                      Mean            .218521
                        Largest       Std. dev.      .2852138
75\%     .4496792       .6951633
90\%     .6112484       .6952174       Variance       .0813469
95\%     .6619091        .695277       Skewness       -.304613
99\%     .6920454        .695354       Kurtosis       2.605813
{\smallskip}
